diff --git a/eclass/nas-kernel.eclass b/eclass/nas-kernel.eclass
index fdbde3b..08c1a49 100644
--- a/eclass/nas-kernel.eclass
+++ b/eclass/nas-kernel.eclass
@@ -376,7 +376,7 @@ nas-kernel_src_unpack() {
 
 	# delete empty directories
 	pushd "${S}"
-	find . -type d -empty -exec rmdir {} \;
+	find . -depth -type d -empty -delete
 	popd
 }